Professional quality, precision-sized spoke wrenches are hardened and nickel plated for long service. Park Tool Spoke Wrenches are vinyl coated in one of five colors indicating the size at a glance.

Three-sided
Sized for 0.127" (3.23mm) nipples
This size is often found on higher-end bikes. Typical compatible nipple brands include DT Swiss, Sapim, Wheelsmith, Pillar, and many others. Always measure to be sure.